1212223231130 has 32 divisors (see below), whose sum is σ = 2312596085760. Its totient is φ = 455923682560.

The previous prime is 1212223231103. The next prime is 1212223231133. The reversal of 1212223231130 is 311323222121.

It is a junction number, because it is equal to n+sod(n) for n = 1212223231096 and 1212223231105.

It is not an unprimeable number, because it can be changed into a prime (1212223231133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3282890 + ... + 3633429.

It is an arithmetic number, because the mean of its divisors is an integer number (72268627680).

Almost surely, 2^{1212223231130} is an apocalyptic number.

1212223231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212223231130 is a deficient number, since it is larger than the sum of its proper divisors (1100372854630).

1212223231130 is a wasteful number, since it uses less digits than its factorization.

1212223231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917374.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1212223231130 its reverse (311323222121), we get a palindrome (1523546453251).

Subtracting from 1212223231130 its reverse (311323222121), we obtain a palindrome (900900009009).

The spelling of 1212223231130 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, two hundred thirty-one thousand, one hundred thirty".